Motor drive for spinning or twisting machines



R. HARGREAVES 1,869,686

- MOTOR DRIVE FOR SPINNING OR TWISTING MACHINES Filed July 27, 1951 z sheets-sheet 1 )2. l PM INVENTOR.

ATTORNEYS.

Patented Aug. 2, 1932- UNITED STATES ROBERT HARGREAVES, O1?- WHITINSVILLE, MASSACHUSETTS, ASSIGNOR T0 WHIT'IN PATENT? OFFICE SAGHUSETTS Applicaltionfiled July 27,

invention relates to machines for spmnmg or twisting textile fibres and particularly to the driving mechanism therefor.

It is the general object of my invention to. provide an improved motor drive for such machines by the use of which'flo'or space is economized and safety in .operation is increased. l

A particular feature of the invention re-, lates to the provision of improved means by wh ch a motor may be suspended in operative pos1t1on in a spinning or twisting machine and by which the, belt tension may be conveniently adjusted. 4

My invention further relates to arrange- -ments and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

Apreferred form of the invention is shown 1n the drawings, in which J Fig. 1 is a partial side elevation of a spinning frame, with a cover plateshown in 3 section, and

Fig. 2 is an end elevation of the spinning frame, with certain parts shown in section.

Referring to the drawings, I have shown parts of a spinning or twistingmachine comprising an end frame member 10, spindle rails 11, a driving cylinder 12, and aplurality of spindles 13 having spindle blades 14 provided with whirls 15. y r y The cylinder 12 is mounted in the upper part of the frame, substantially above the plane of the whirls 15, and the cylinder 12 v is connected to the spindles by a pluralitiyl' of bands 17, each driving two spindles at eac side of the'machine. Each band 17 has a straight run 17 B across the frame, connecting similarly located spindles at opposite sides thereof, while the other run of theband is led around guide pulleys 18 (Fig. 2) and isthen looped upward over thedrlving cylin der 12. 1

Suitable rovision is made for taking upthe slack o a the bands 17 but such provision constitutes no part of my present invention.-

. A motor M is positioned in the lower part of the spinning or twistin frame and within the lateral and longitudinal limits thereof. g1

An armature shaft 20 projects from one end IIMIOTOR DRIVE FOR SPINNING OR TWISTTNG MACHINES 1931. Serial No. 553,290.

to receive clamping bolts 33. The cross frame a members 31 are provided with up-turned end portions 35 having openings 36 therethrough,

adapted to receive cylindrical bars 37 which are preferably secured in depending portions 38 of supporting brackets 39.

The upright end portion 40 of each bracket 39 is slidable vertically in guideways in theend frame 10 and may be-secured in vertically adjusted position thereon by clamping screws or bolts 41. The cross bars 31 may be d- 'usted toward or away from each other on the cylindrical bars 37 and may be secured in adjusted position by set screws 42. The bars 37 areheld from displacement by set screws43.

bracket 39 and is provided with an enlarged end portion 45, preventing upward movement of the nut relative to the bracket. Each nut 44 is threaded to receive a supporting screw 50, extending downward from a spindle rail 11 and held from rotation therein by a lock,

conveniently, mount any usual commercial type of motor M within the limits of floor space occupied by a commercial spinnlng; or

veniently adjust the motor to secure the desired tension on the driving belts 22.

The slots 32in the cross bars 31 provide for different transverse spacing of the motor feet 30, and adjustment of the cross bars 31 on the cylindrical bars 37 provides for varying lon- 'tudinal spacing of, the motor feet.

The weight of the motor is largely carried.

A nut 44 is rotatably mounted in each twisting machine, and I am. able to conby the supporting screws 50 and the motor can be adjusted vertically by turning the nuts 45 relative to the adjusting screws 50. After being brought to the desired vertical position, the motor may be firmly secured against vi-- bration by. tightening the clamping nuts 41, thus binding the upright portion 40 of each lf racket 39 in the guideways provided there- I have thus provided a motor drive for a spinning or twisting machine in which the motor is positioned within the floor-space limits of the machine, thus economizing room in the factory or mill, and in which convenient and effective provision is made for vertically adjusting the .motor to obtain the desired belt tension or for any other purpose.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in I claim is 1. In a spinning or twisting machine, a frame having a plurality of spindles mounted along each side thereof, a drivingicylinder for said spindles mounted in said frame and positioned substantially above the level of the driving portions of said spindles, a motor suspended from side portions of said frame and within the floor space thereof, a relatively long direct vertical belt drive from said motor to said cylinder, and means to raise and lower said motor relatively to said frame to adjust the belt tension.

2. In a spinning or twisting machine, a frame having a plurality of spindles mounted along each side thereof, a driving cylinder for said spindles mounted in said frame and positioned substantially above the level of the driving portions of said spindles, a plurality of bands, each driving a plurality of said spindles and'each having a straight run directly across said frame below said cylinder and having a guided portion looped upward over and around said cylinder, a motor suspended from a side portion of said frame and within the floor space thereof, a relatively long direct vertical belt drive from said motor to said cylinder, and means to raise and lower said motor relatively to said-frame to adjust the belt tension.

3. In a spinning or twisting machine, a frame having a plurality of spindles mounted the claims, but what seaeee said frame and belt connected to said cylinder, and means to support said motor in said frame, said supporting means for said motor comprising end brackets each having an upright end portion adapted to be guided on said 7 frame and secured thereto and each having a horizontally extending cross bar and a plurality of motor supporting members mounted on and slidable axially of said cross bars.

5. In a spinning or twisting machine, a frame having a plurality of spindles mounted along each side thereof, a driving cylinder for said spindles mounted in said frame, a motor positioned within the base portion of said frame and belt connected to said cylinder, means to support said motor from side portions of said frame and to raise and lower said motor relatively to said frame, and means to secure said motor to anend portion of said frame in vertically adjusted position.

In testimony whereof I affixed my signature.

' ROBERT HARGREAVES.

have hereunto along each side thereof, a drivin cylinder for said spindlesmounted in sai frame, a

motor positioned within the base portion of' said frame and belt connected to said cylin der, and means to support said motor from side portions of said frame and to raise and lower said motor relatively to said frame.

4. In a spinning or twisting machine, a

frame having a plurality of spindles mounted along each side thereof, a driving cylinder for said spindles mounted in said frame, a motor positioned within the base portion of 

